Answer:
C). By highlighting the weaknesses of plastic in order to show that aluminum is superior.
Explanation:
The author's purpose is illustrated as the intent or reason for which he/she has created/written a particular text which could either be to inform, entertain, convince or mere to share an event or incident. The authors employ a variety of techniques like persuasive appeals, figurative language, etc. to accomplish their intended purpose.
In the given question, the compare-and-contrast organizational pattern of the passage serve the author's purpose by 'highlighting the weaknesses of plastic to reflect that aluminium is superior'. This comparison assists to inform the readers(author's purpose) about the disadvantages of plastic and the supremacy of 'aluminium over plastic' through the descriptions like 'aluminium...easy to recycle', 'decomposes...quickly', etc. Thus, <u>option C</u> is the correct answer.
